Update README.md

Author: scopeInfinity

README.md

@@ -69,7 +69,7 @@ Test videos with poor results
   * Current config has docker-compose file format '3.2'.
     * https://github.com/docker/compose/releases
   * ```bash
-    sudo apt-get install docker.io`
+    sudo apt-get install docker.io
     sudo curl -L "https://github.com/docker/compose/releases/download/1.25.4/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
     sudo chmod +x /usr/local/bin/docker-compose
     ```